For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find K, data in the ALEKS Data tab. compound CaBr Nalle Baco, Does solubility change with pH7 Oyes O no yes O no. O yes O no pH = 7 6 highest solubility pH = 5 O pH = 4 Q

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with pH. If the solubility does change, pick the pH at which you'd expect the highest solubility. You'll find K, data in the ALEKS Data tab. compound CaBr Nalle Baco, Does solubility change with pH7 Oyes O no yes O no. O yes O no pH = 7 6 highest solubility pH = 5 O pH = 4 Q

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter16: Solubility And Complex Ion Equilibria

Section: Chapter Questions

Problem 121MP: Aluminium ions react with the hydroxide ion to form the precipitateAl(OH)3(s), but can also react to...

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Aluminium ions react with the hydroxide ion to form the precipitateAl(OH)3(s), but can also react to form the soluble complex ionAl(OH)4. In terms of solubility, Al(OH)3(s)will be more soluble in very acidic solutions as well as more soluble in very basic solutions. a. Write equations for the reactions that occur to increase the solubility of Al(OH)3(s)in very acidic solutions and in very basic solutions. b. Lets study the pH dependence of the solubility of Al(OH)3(s)in more detail. Show that the solubility of Al(OH)3, as a function of [H+], obeys the equation S=[H+]3Ksp/Kw3+KKw/[H+] Where S=solubility=[Al3+]+[Al(OH)4-]and K is the equilibrium constant for Al(OH)3(s)+OH(aq)Al(OH)4(aq) c. The value of K is 40.0 and Ksp for Al(OH)3 is21032. Plot the solubility of Al(OH)3 in the pH range412.
. Under what circumstances can we compare the solubilities of two salts by directly comparing the values of their solubility products?
Professor Acetico Acido has assigned the analysis of unknown organic compound samples to Al Coholbased on their solubility behavior. The summary of the solubility profile are tabulated below along with thepossible structures of the samples. Identify each unknown sample by matching the respective solubility profilewith the given structures. Briefly explain the reason for your answer.
AlF3 is insoluble in liquid HF, but dissolves if NaF is present. When BF3is added to the solution, AlF3 precipitates. Explain the three observations. Show equations if can be applied
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The ?spKsp of cobalt(II) carbonate, CoCO3, is 1.0×10−101.0×10−10. Calculate the molar solubility, ?S, of this compound.
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Professor Acetico Acido has assigned the analysis of unknown organic compound samples to Al Cohol based on their solubility behavior. The summary of the solubility profile are tabulated below along with the possible structures of the samples. Identify each unknown sample by matching the respective solubility profile with the given structures. Briefly explain the reason for your answer.
The ?spKsp of lanthanum fluoride, LaF3LaF3 , is 2.00×10−192.00×10−19 . Calculate the molar solubility, ?s, of this compound.
Mercury(I) chloride (Hg2S) is sparingly soluble in water. The S2- anion is hydrolyzed in water. Derive the solubility equation for this substance according to the systematic method, taking into account the following equilibria. Calculate the solubility of Hg2S at pH=5.